CN203324965U - Multi-screen display device - Google Patents
Multi-screen display device Download PDFInfo
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- CN203324965U CN203324965U CN2013204066206U CN201320406620U CN203324965U CN 203324965 U CN203324965 U CN 203324965U CN 2013204066206 U CN2013204066206 U CN 2013204066206U CN 201320406620 U CN201320406620 U CN 201320406620U CN 203324965 U CN203324965 U CN 203324965U
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Abstract
The utility model relates to the displayer technology, and discloses a multi-screen display device. The multi-screen display device comprises a plurality of display screens. Small signal ground wires of the display screens are connected, large signal ground wires of the display screens are connected, the small signal ground wires enable small signals to be mutually connected, and the large signal ground wires enable large signals to be mutually connected. The display screens share one power source, the power input ends of signal plates of the display screens are respectively provided with common mode chokes. According to the multi-screen display device, the small signal ground wires of the display screens are connected, the large signal ground wires of the display screens are connected, and therefore the potential difference of a multi-screen displayer is eliminated, and the water wave interference phenomenon caused by modulation brightness or contrast ratio differences among the display screens is eliminated. Further, the common mode chokes are arrange at signal input ends of the signal plates of the display screens are arranged additionally, and therefore the common mode interference of sharing the power source is eliminated.
Description
Technical field
The utility model relates to the display technology field, particularly relates to a kind of multi-display apparatus.
Background technology
At present the most frequently used is the single screen display that a computer is joined a display, when needs are opened a plurality of window, need on display, be switched, seem crowded, particularly, in analysis diagram, debugged program, the single screen display is no longer applicable.Therefore, multi-screen (double screen or more than double screen) display occurred, had electric potential difference between multi-screen, picture can present water wave ripple phenomenon; And, for the multihead display device that shares a power supply, easily produce the situation that mutual signal disturbs between multi-screen.
The utility model content
(1) technical matters that will solve
The technical problems to be solved in the utility model is the electric potential difference interference phenomenon of how eliminating between multi-screen.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of multi-display apparatus, comprise a plurality of display screens, the small-signal ground wire of described a plurality of display screens is connected, the large-signal ground wire of described a plurality of display screens is connected, described small-signal ground wire interconnects with making small-signal, and described large-signal ground wire interconnects with making large-signal.
Further, described a plurality of display screens share a power supply, and the signal input part of the signal plate of described a plurality of display screens is respectively equipped with common mode choke.
Further, in described a plurality of display screen, between adjacent two display screens, adopt axis to connect.
Further, described axis is provided with at least two group ground wire lock sets, and every group of ground wire lock set is comprised of the ground wire lock of two electrical connections respectively; The small-signal ground wire of described adjacent two display screens is connected respectively to the wherein ground wire of one group of ground wire lock set and locks; The large-signal ground wire of described adjacent display screen is connected respectively to ground wire of another group ground wire lock set and locks.
Further, described ground wire lock adopts the Low ESR metal material to make.
Further, described display screen is 2.
(3) beneficial effect
A kind of multi-display apparatus that technique scheme provides, and the multihead display device that comprises this circuit, respectively the small-signal ground wire of a plurality of display screens and large-signal ground wire are connected, eliminate the electric potential difference between the multihead display device, thereby solved the water wave wave interference phenomenon caused because reconciling brightness or contrast between multi-screen.
Further, the signal input part by the signal plate at each display screen increases the common mode interference that common mode choke can be eliminated common source.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model multi-display apparatus preferred embodiment;
Fig. 2 is the enlarged drawing at A place in Fig. 1.
Wherein, the 1, first display screen; 11, the signal plate of the first display screen; 12, the small-signal ground wire of the first display screen; 13, the large-signal ground wire of the first display screen; 14, the first common mode choke; 2, second display screen; 21, the signal plate of second display screen; 22, the small-signal ground wire of second display screen; 23, the large-signal ground wire of second display screen; 24, the second common mode choke; 3, axis; 31, ground wire lock set; 311, ground wire lock; 4, power supply unit; 5, signal source.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for the utility model is described, but are not used for limiting scope of the present utility model.
A kind of multi-display apparatus of the present utility model, comprise a plurality of display screens, the small-signal ground wire of the plurality of display screen is connected, the large-signal ground wire of the plurality of display screen is connected, thus, can eliminate the electric potential difference between the multihead display device, thereby solve the water wave wave interference phenomenon caused because reconciling brightness or contrast between multi-screen.Wherein, the small-signal ground wire interconnects with making small-signal, and the large-signal ground wire interconnects with making large-signal.Refer to the simulating signal of delivering to display from main frame, be exactly large-signal the negative pole of power supply small-signal, and its electric current passed through is more intense.
Preferably, a plurality of display screen of the present utility model shares a power supply, and being respectively equipped with common mode choke at the signal input part of the signal plate of a plurality of display screens, the signal input part by the signal plate at each display screen increases the common mode interference that common mode choke can be eliminated common source.
Between adjacent two display screens of a plurality of display screens of the present utility model, adopt axis to connect.This axis is provided with at least two group ground wire lock sets, and every group of ground wire lock set is comprised of the ground wire lock of two electrical connections respectively; The small-signal ground wire of two adjacent display screens is connected respectively to the wherein ground wire of one group of ground wire lock set and locks; The large-signal ground wire of adjacent display screen is connected respectively to the ground wire of another group ground wire lock set and locks.Preferably, the lock of the ground wire on axis adopts the Low ESR metal material to make.
As shown in Figure 1, be preferred embodiment of the present utility model, display screen is set to two, is respectively the first display screen 1 and second display screen 2.The first display screen 1 and second display screen 2 share a power supply unit 4 and a signal source 5, and this signal source 5 is that the small-signal ground wire is connected with signal source from the VGA signal (simulation) of main frame output, and the large-signal ground wire is connected with the negative pole of power supply unit; Wherein, the first display screen 1 is connected by axis 3 with second display screen 2, and the signal input part of the signal plate 11 of the first display screen is provided with the first common mode choke 14, and the signal input part of the signal plate 21 of second display screen is provided with the second common mode choke 24.
A kind of method that the utility model also provides elimination multi-screen signal of the multi-display apparatus based on above-mentioned to disturb: the small-signal ground wire of a plurality of display screens is connected, the large-signal ground wire of a plurality of display screens is connected, make the small-signal ground of a plurality of display screens and large-signal ground respectively in same equipotentiality point, wherein, the small-signal ground wire interconnects with making small-signal, and the large-signal ground wire interconnects with making large-signal.Large-signal ground wire or small-signal ground wire directly can be electrically connected to, or indirectly connect by the ground wire lock set on the axis between display screen, when connecting by the ground wire lock set, the ground wire lock of this ground wire lock set adopts the Low ESR metal material to make, and makes the large-signal ground wire be equal to ground wire and be connected with the small-signal ground wire.
Further, a plurality of display screens are shared to a power supply, and a plurality of display screens the signal input part of signal plate common mode choke is set respectively.
Preferably, as shown in Figure 1, display screen is set to 2, and the small-signal ground wire 12 of the first display screen is connected with the small-signal ground wire 22 of second display screen, makes the small-signal ground of the first display screen and second display screen at same equipotentiality point; , the large-signal ground wire 13 of the first display screen is electrically connected to the large-signal ground wire 23 of second display screen simultaneously, makes the large-signal ground of the first display screen and second display screen at same equipotentiality point.
Further, the signal input part at the signal plate 11 of the first display screen arranges the first common mode choke 14; Simultaneously, the signal input part at the signal plate 21 of second display screen arranges the second common mode choke 24.
The technical scheme that multi-screen of the present utility model (being preferably double screen) display device and the elimination multi-screen signal based on this multi-display apparatus disturb, allow small-signal ground wire and the large-signal ground wire of a plurality of display screens connect respectively, make between multi-screen potential-free poor, thereby solved the water wave ripple phenomenon caused because reconciling brightness or contrast between multi-screen;
Further, the signal input part by the signal plate at each display screen increases the common mode interference phenomenon that common mode choke can be eliminated the multi-screen common source.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and replacement, these improvement and replacement also should be considered as protection domain of the present utility model.
Claims (6)
1. a multi-display apparatus, comprise a plurality of display screens, it is characterized in that, the small-signal ground wire of described a plurality of display screens is connected, the large-signal ground wire of described a plurality of display screens is connected, and described small-signal ground wire interconnects with making small-signal, and described large-signal ground wire interconnects with making large-signal.
2. multi-display apparatus as claimed in claim 1, is characterized in that, described a plurality of display screens share a power supply, and the signal input part of the signal plate of described a plurality of display screens is respectively equipped with common mode choke.
3. multi-display apparatus as claimed in claim 1 or 2, is characterized in that, in described a plurality of display screens, between adjacent two display screens, adopts axis to connect.
4. multi-display apparatus as claimed in claim 3, is characterized in that, described axis is provided with at least two group ground wire lock sets, and every group of ground wire lock set is comprised of the ground wire lock of two electrical connections respectively; The small-signal ground wire of described adjacent two display screens is connected respectively to the wherein ground wire of one group of ground wire lock set and locks; The large-signal ground wire of described adjacent display screen is connected respectively to ground wire of another group ground wire lock set and locks.
5. multi-display apparatus as claimed in claim 4, is characterized in that, described ground wire lock adopts the Low ESR metal material to make.
6. multi-display apparatus as claimed in claim 1 or 2, is characterized in that, described display screen is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204066206U CN203324965U (en) | 2013-07-09 | 2013-07-09 | Multi-screen display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204066206U CN203324965U (en) | 2013-07-09 | 2013-07-09 | Multi-screen display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203324965U true CN203324965U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204066206U Expired - Lifetime CN203324965U (en) | 2013-07-09 | 2013-07-09 | Multi-screen display device |
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| Country | Link |
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| CN (1) | CN203324965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345374A (en) * | 2013-07-09 | 2013-10-09 | 京东方科技集团股份有限公司 | Multi-screen display device and method for eliminating multi-screen signal interference |
-
2013
- 2013-07-09 CN CN2013204066206U patent/CN203324965U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345374A (en) * | 2013-07-09 | 2013-10-09 | 京东方科技集团股份有限公司 | Multi-screen display device and method for eliminating multi-screen signal interference |
| WO2015003463A1 (en) * | 2013-07-09 | 2015-01-15 | 京东方科技集团股份有限公司 | Multi-screen display device and method for eliminating multi-screen signal interference |
| US9541950B2 (en) | 2013-07-09 | 2017-01-10 | Boe Technology Group Co., Ltd. | Multi-screen display apparatus and method for eliminating signal interferences in multi-screens |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
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| CX01 | Expiry of patent term |